如何为Django测试自动创建postgis数据库？

Question

I'm trying to test my Django apps which run on a PostGIS database, by following the info in the Django testing docs .

Normally I create a new database by copying a template:

(as user postgres)

createdb -T template_postgis -O lizard test_geodjango2

When I run ./manage.py test , I get the following message:

Creating test database... Got an error creating the test database: permission denied to create database

Type 'yes' if you would like to try deleting the test database 'test_geodjango2', or 'no' to > cancel:

What's the best way to let the system create the database?

Answer 1

It may be that your DATABASE_USER doesn't have permissions to create a new database/schema.

---

Edit

If you read the source for the Django test command, you'll see that it always creates a test database. Further, it modifies your settings to reference this test database.

See this: http://docs.djangoproject.com/en/dev/topics/testing/#id1

What you should do is use fixtures . Here's how we do it.

1. From your template database, create a "fixture". Use the manage.py dumpdata command to create a JSON file with all of your template data. [Hint, the --indent=2 option gives you readable JSON that you can edit and modify.]

2. Put this in a fixtures directory under your application.

3. Reference the fixtures file in your TestCase class definition. This will load the fixture prior to running the test.

    class AnimalTestCase(TestCase): fixtures = ['mammals.json', 'birds'] def testFluffyAnimals(self): etc. 

The fixtures replace your template database. You don't need the template anymore once you have the fixtures.

Answer 2

As S.Lott mentioned, use the standard test command.

Using geodjango with postgis you'll need to add the following to your settings for the spatial templates to be created properly.

settings.py

POSTGIS_SQL_PATH = 'C:\\Program Files\\PostgreSQL\\8.3\\share\\contrib'
TEST_RUNNER='django.contrib.gis.tests.run_tests'

console

manage.py test

Described here: http://geodjango.org/docs/testing.html?highlight=testing#testing-geodjango-apps

I haven't looked into it yet, but when I do this I get prompted for the database password when it attempts to install the necessary sql.

Answer 3

As of Django 1.11, Django supports the Postgres-only setting settings.DATABASE[whatever]['TEST']['TEMPLATE'] that dictates what template the test database is created from:

https://docs.djangoproject.com/en/dev/ref/settings/#template